Improved magnetic field generation efficiency and higher temperature spheromak plasmas

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Wood_2009_Nucl._Fusion_49_025001.pdf (697.18 KB)

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https://iopscience.iop.org/article/10.1088/0029-5515/49/2/025001/meta

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https://doi.org/10.1088/0029-5515/49/2/025001
 http://hdl.handle.net/11603/31455

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UMBC Mechanical Engineering Department

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Author/Creator ORCID

https://orcid.org/0000-0002-6830-3126

Date

2008-12-30

Type of Work

journal articles
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Citation of Original Publication

Wood, R. D., D. N. Hill, H. S. McLean, E. B. Hooper, B. F. Hudson, J. M. Moller, and C. A. Romero-Talamás. “Improved Magnetic Field Generation Efficiency and Higher Temperature Spheromak Plasmas.” Nuclear Fusion 49, no. 2 (December 2008): 025001. https://doi.org/10.1088/0029-5515/49/2/025001.

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This work was written as part of one of the author's official duties as an Employee of the United States Government and is therefore a work of the United States Government. In accordance with 17 U.S.C. 105, no copyright protection is available for such works under U.S. Law.
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Abstract

New understanding of the mechanisms governing the observed magnetic field generation limits on the sustained spheromak physics experiment has been obtained. Extending the duration of magnetic helicity injection during the formation of a spheromak and optimizing the ratio of injected current to bias flux produce higher magnetic field plasmas with record spheromak electron temperatures. To explore magnetic field buildup efficiency limits, the confinement region geometry was varied resulting in improved field buildup efficiencies.